list_del corruption, ffff88805227f738->next is LIST_POISON1 (dead000000000100) ------------[ cut here ]------------ kernel BUG at lib/list_debug.c:45! invalid opcode: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 14382 Comm: syz-executor.2 Not tainted 4.19.167-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__list_del_entry_valid.cold+0x23/0x55 lib/list_debug.c:45 Code: e8 d6 92 cf fd 0f 0b 48 89 ee 48 c7 c7 20 c1 b3 88 e8 c5 92 cf fd 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 60 c0 b3 88 e8 b1 92 cf fd <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 c0 c0 b3 88 e8 9d 92 cf fd 0f 0b RSP: 0018:ffff88805227f610 EFLAGS: 00010086 RAX: 000000000000004e RBX: ffff88805227f720 RCX: 0000000000000000 RDX: 0000000000012d1c RSI: ffffffff814fde01 RDI: ffffed100a44feb4 RBP: ffff88805227f738 R08: 000000000000004e R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 R13: dead000000000100 R14: ffff88805227f740 R15: 0000000000000007 FS: 00007f104cb97700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31023000 CR3: 0000000094cdb000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __list_del_entry include/linux/list.h:117 [inline] list_del include/linux/list.h:125 [inline] __remove_wait_queue include/linux/wait.h:184 [inline] remove_wait_queue+0x2c/0x180 kernel/sched/wait.c:44 tipc_send_group_bcast+0x317/0xa10 net/tipc/socket.c:1022 __tipc_sendmsg+0xa2b/0x1320 net/tipc/socket.c:1311 tipc_sendmsg+0x4c/0x70 net/tipc/socket.c:1276 sock_sendmsg_nosec net/socket.c:622 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:632 ___sys_sendmsg+0x3b3/0x8e0 net/socket.c:2115 __sys_sendmmsg+0x195/0x470 net/socket.c:2210 __do_sys_sendmmsg net/socket.c:2239 [inline] __se_sys_sendmmsg net/socket.c:2236 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2236 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45e219 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f104cb96c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 000000000045e219 RDX: 0000000000000092 RSI: 00000000200030c0 RDI: 0000000000000004 RBP: 000000000119bfc8 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000119bf8c R13: 00007fff2646a1ef R14: 00007f104cb979c0 R15: 000000000119bf8c Modules linked in: ---[ end trace 86430a0796f4b672 ]--- RIP: 0010:__list_del_entry_valid.cold+0x23/0x55 lib/list_debug.c:45 Code: e8 d6 92 cf fd 0f 0b 48 89 ee 48 c7 c7 20 c1 b3 88 e8 c5 92 cf fd 0f 0b 4c 89 ea 48 89 ee 48 c7 c7 60 c0 b3 88 e8 b1 92 cf fd <0f> 0b 4c 89 e2 48 89 ee 48 c7 c7 c0 c0 b3 88 e8 9d 92 cf fd 0f 0b RSP: 0018:ffff88805227f610 EFLAGS: 00010086 RAX: 000000000000004e RBX: ffff88805227f720 RCX: 0000000000000000 RDX: 0000000000012d1c RSI: ffffffff814fde01 RDI: ffffed100a44feb4 RBP: ffff88805227f738 R08: 000000000000004e R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: dead000000000200 R13: dead000000000100 R14: ffff88805227f740 R15: 0000000000000007 FS: 00007f104cb97700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31023000 CR3: 0000000094cdb000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400